• Title/Summary/Keyword: Survey of Plants

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Plants with Liver Protective Activities (I) (강간제(强肝劑)로 사용(使用)된 생약(生藥)의 조사연구(調査硏究) (I) -간염(肝炎)에 미치는 효과(效果)에 관(關)하여-)

  • YunChoi, Hye-Sook;Chang, Il-Moo
    • Korean Journal of Pharmacognosy
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    • v.8 no.3
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    • pp.125-129
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    • 1977
  • Literature survey was undertaken to investigate what medicinal plants have been used as hepatotonic or for treatment of various liver diseases in far eastern asian countries. Total 59 plants were found to be described in the literatures. And 9 plants among them were studied on their hepatotonic activities against animal model of hepatitis. Several plants appeared to exhibit profound activities on the hepatitis model employed.

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The Impact of the Great East Japan Earthquake and Fukushima Daiichi Nuclear Accident on People's Perception of Disaster Risks and Attitudes Toward Nuclear Energy Policy

  • Iwai, Noriko;Shishido, Kuniaki
    • Asian Journal for Public Opinion Research
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    • v.2 no.3
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    • pp.172-195
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    • 2015
  • Multiple nationwide opinion surveys, carried out by the government (cabinet office), major media (national newspapers and NHK), the National Institute for Environmental Studies, and the Atomic Energy Society of Japan, have revealed that the Fukushima nuclear accident has heightened people's perception of disaster risks, fear of nuclear accidents, and increased recognition of pollution issues, and has changed public opinion on nuclear energy policy. The opinion gap on nuclear energy policy between specialists and lay people has widened since the disaster. The results of the Japanese General Social Survey data show that objections to the promotion of nuclear energy are strong among females, and weaker among young males and the supporters of the LDP. These findings are similar to the data collected after the Chernobyl accident. People who live in a 70km radius of nuclear plants tend to evaluate nuclear disaster risks higher. Distance from nuclear plants and the perception of earthquake risk interactively correlate with opinions on nuclear issues. Among people whose evaluation of earthquake risk is low, those who live nearer to the plants are more likely to object to the abolishment of nuclear plants. It was also found that the nuclear disaster has changed people's behavior; they now try to save electricity. The level of commitment to energy saving is found to relate to opinions on nuclear issues.

A Study on the Development of Program and Using CAD for Flower, Leaf and Fruit Characteristics of Deciduous Woody Landscape Plants in Korea (낙엽조경수목의 꽃,잎,열매,줄기 특성 정보체계 구축 및 CAD이용에 관한 연구)

  • 서병기;심경구;심재성;정해준
    • Asian Journal of Turfgrass Science
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    • v.8 no.2
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    • pp.65-85
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    • 1994
  • This study was carried out to develope DBMS program and use CAD for flower, leaf and fruit characteristics of deciduous woody landscape plants in Suwon, Korea from January 1, 1992 to March 20,1993. The results were as follows : 1. The flower, leaf and fruit characteristics of 211 species which were anthesis, flowering period, flower color, leaf spreading, leaf color before fall leaf coloring, fall leaf color, fruiting, fruit period, fruit color and trunk color were investigated through field survey. 2. DBMS program for flower, leaf, fruit and trunk characteristics of deciduous woody landscape plants was developed with data through field survey. And the DBMS program might contribute to the decision of appropriate times for planting design for flowers, fall foliage color, fruit color and hark color. 3.During this procedure, CAD software was used to demonstrate the deblossom before leaf spreading and leaf spreading in flowering, fall foliage color, fruit color after leaf falling, and hark color for planting design as well as seasonal color change of deciduous woody landscape plants.

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Feasibility Assessment of Small Hydro Power Plants Using Diversion Weirs for Agricultural Purpose (농업용 보를 이용한 소수력발전소의 타당성 분석)

  • Lee, Chul-Hyung;Park, Wan-Soon
    • 한국태양에너지학회:학술대회논문집
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    • 2011.04a
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    • pp.229-234
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    • 2011
  • Feasibility assessment for small hydropower plants using diversion weirs located in stream for agricultural purpose has been studied. The model, which can predict flow duration characteristic of stream, was developed to analyze the inflow caused from rainfall. And another model to predict hydrologic performance for small hydropower plants is established. Preliminary survey was performed identifying several candidate sites, and two sites were selected finally for actual site reconnaissance. During the course of site survey, generating capacity, construction and equipment cost, and payback through life time of each sites were calculated for economical feasibility analysis. The results of this study have estimated that the small hydropower plants using diversion weirs for agricultural purpose may offer better opportunities in future with increasing fuel cost and nation's energy policy.

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Damping-off of Coastal Hogfennel Caused by Rhizoctonia solani AG-4

  • Moon, Youn-Gi;Kim, Se-Won;Seo, Hyun-Taek;Kim, Wan-Gyu
    • Research in Plant Disease
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    • v.27 no.1
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    • pp.45-47
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    • 2021
  • Damping-off symptoms were frequently observed on young plants of coastal hogfennel (Peucedanum japonicum) grown in a farmer's vinyl greenhouse located in Goseong, Gangwon Province, Korea during a disease survey in June 2019. Incidence of the diseased plants was 50-70% in the vinyl greenhouse investigated during the disease survey. Eight isolates of Rhizoctonia sp. were obtained from the diseased plants. All the isolates were identified as Rhizoctonia solani AG-4 based on the morphological characteristics and anastomosis test. Three isolates of R. solani AG-4 were tested for pathogenicity on coastal hogfennel by artificial inoculation. All the tested isolates induced damping-off symptoms on the inoculated plants. The symptoms were similar to those observed in the farmer's vinyl greenhouse investigated. This is the first report of R. solani AG-4 causing damping-off in coastal hogfennel.

A Survey of Termitomyces (Lyophyllaceae, Agaricales), Including a New Species, from a Subtropical Forest in Xishuangbanna, China

  • Ye, Lei;Karunarathna, Samantha C.;Li, Huli;Xu, Jianchu;Hyde, Kevin D.;Mortimer, Peter E.
    • Mycobiology
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    • v.47 no.4
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    • pp.391-400
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    • 2019
  • A survey of mushrooms was conducted in Xishuangbanna, Yunnan Province, China, in the rainy season (May to October) of 2012, 2013, and 2014, during which 16 specimens of Termitomyces were collected. Preliminary macro- and micro-characteristics, together with ITS sequence data, showed that four of the specimens belonged to a new species (Termitomyces fragilis), while the other 12 belonged to T. aurantiacus, T. eurrhizus, T. globules, T. microcarpus, and T. bulborhizus. In this paper, T. fragilis is introduced as a species new to science based on morphological characterization and phylogenetic analyses. Macro- and micro- morphological descriptions, color photographs and line drawings of the new species, and a phylogenetic tree to show the placement of the new species are provided. T. fragilis is then compared with other closely related taxa in the genus Termitomyces.

A Study on the Distribution of Heavy Metals in Soils and Native Plants of Goggyochun (곡교천 주변의 토양과 자생식물의 중금속분포에 관한 연구)

  • Cho, Hae-Yong;Choi, Chang-Ha
    • Journal of Environmental Impact Assessment
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    • v.9 no.4
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    • pp.339-348
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    • 2000
  • This study was conducted to investigate the distribution pattern of plants on the streamside of Goggyochun, and to survey the distribution of heavy metal-contaminated soils and plants. A total of 11 survey sites were selected along the Goggyochun during the period of between June and September 1999. The wet land plants were composed of 44 species. The most frequently occurring species in the study sites were Rumex crispus, Persicaria hydropiper, Cyperus amuricus and Setaria viridis, and among them the Humulus japonicus, Erigeron canadensis and Phragnites communis species were dominants of the community. Analysis of soil properties showed that organic matter and clay contents were higher in the upstream region while sand content was higher in the downstream region. The pH and the organic matter contents of soils were at range of 6.70-9.94 and 2.39-15.16% respectively. The average contents of Pb and Cd in soils were 11.96mg/kg and 1.64mg/kg respectively, and these values were higher as compared with those of ordinary soil in Korea. The average contents of Zn and Pb in Persicaria hydropiper were 8.30mg/kg and 7.38mg/kg respectively, and these values were higher than other plants. The distribution of heavy metals in plants varied in accordance with the species regardless of the sites.

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Health Intended Food Use by Korean Adults: Data from the Korean National Health and Nutrition Examination Survey 2001 (2001년 국민건강영양조사 자료를 이용한 한국 성인의 건강증진용 식품 사용실태)

  • Jeong, Hae-Rang
    • Journal of the Korean Dietetic Association
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    • v.12 no.4
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    • pp.369-377
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    • 2006
  • Data from the 2001 Korea Health and Nutrition Examination Survey, a nationally representative, cross-sectional survey, were analyzed to assess prevalence of health intended food use overall and in relation to socio-demographic and lifestyle characteristics. Health intended food were classified into four broadly defined categories: vitamin and mineral supplements, health aid food, animal protein based restorative food and medicinal plants. Thirty three percent of adults aged 20 years or older reported taking health intended food in the past year : twenty four percent took vitamin or mineral supplements and medicinal plants were taken by 17 % of adults, health aid food by 15% and animal protein based restorative food by 6%. In multivariate logistic regression, female gender, older age, more education, regular exercise and non smoking were associated with greater use of vitamin or mineral supplements. Dietary quality was significantly associated with use of vitamin or mineral supplements or health aid food but not with use of medicinal plants or animal protein based restorative foods. Obese persons were less likely to take vitamin or mineral supplements. These findings suggest that epidemiologic studies of diet, demographic or lifestyle and health take health intended food use into account because of high prevalence of use of the food by the population and differential use of the food by socio-demographic and lifestyle characteristics.

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